NEC NDA-24233 manual VisuaLink 128/384 Engineering Guide Factors Disconnections

VisuaLink 128/384 Engineering Guide			Factors of	Disconnections
Number	Message	Factors for Disconnection	Countermeasure (Example)		Location
# 111	Protocol error,	Report of other protocol error.	After checking a remote		RN
	unspecified		number, retry.
# 127	Interworking,	Inter-work occurrence in a network	After checking a remote
	unspecified	that cannot display a reason for	number, retry.
		operation.
# 901	No response from	Automatic Dial timed out	Check a remote unit status.
	the remote terminal
# 903	Network failure	Line (layer 1) failure (Physical	Contact a retailer or a service
		connection error).	center.
# 904	Network failure	Line (layer 2) failure (Electric	Contact a retailer or a service
		interface error)	center.
# 905	Network failure or	TEI error	Contact a retailer or a service
	wrong contact		center.
# 906	Network failure	Layer 3 (Appreciation layer) calling	Contact a retailer or a service
		timed out	center.
# 907	Disconnected by	Not used
	initialization
# 908	Disconnected by	Not used	Contact a retailer or a service
	initialization		center.
# 909	Disconnected by	Not used	Contact a retailer or a service
	initialization		center.
# 912	Disconnected by	Message inconsistent with the	After a while, retry.
	initialization	current condition is received.
# 913	Disconnected by	Connect and disconnect during a re-	After a while, retry.
	initialization	start response waiting.
# 914	Network failure	Lower layer in failure
# 915	network failure	Lower layer in failure
# 916	The provisioned	Calling condition is NG
	communication
	time expired
# 917	A connection could	Layer 3 initialization not completed
	not be made
# 918	A connection could	Layer 3 initialization missed
	not be made
# 919	A connection could	CES pointing error
	not be made
# 980	Disconnected	VCP (Video chip hang-up)	After a while, retry.

NDA-24233 Issue 2 Page 5-3